One of the unintended negative consequences of online advertising has been the loss of value in traditional classifieds. It's simply quicker, simply easier for an end user who's online, on a broadband connection, to look things up and to figure out what they want to buy.

It's a mistake to predict the size of markets that are so new. This model has shown no signs of slowing down. So we are going to get as much of it as we possibly can, and when we get close to that we'll figure out other problems.

I actually think most people don't want Google to answer their questions. They want Google to tell them what they should be doing next.

One person's definition of evil is another person's different definition.

The biggest mistake that I made was not anticipating the rise of the social networking phenomenon.

Technology is always evolving, and companies.. not just search companies.. can't be afraid to take advantage of change.

The thing that people seem to miss about not just Google, but also our competitors, Yahoo, eBay and so forth, is that there's an awful lot of communities that have never been served by traditional media.